Apparatus for treating foaming liquids.



'PATENTED AUG. 13, 1907 P. H. LEHNERT. APPARATUS FOR TREATING POAMING LIQUIDS.

APPLICATION FILED FEB. 23, 1907' zwessasi Plauen, Germany, have invented new and useful lm-.

Uru'rnn; STATES .srnrrr or rniin FRANZ nsnnuon LEHNERT, or DRESDENQGERMANY, ASSIGNOR o nnns'r rrsonnn, or

' DRESDEN, GERMANY.

APPARATUS FOR TREATING FOAMILIG LIQUIDS.

Specification of Letters Patent.

Patented Aug. 13, 1907.

Original application filed luv 23, 1906, Serial No. 323,011. Divided and this application filed Felirusry 23, 1907. Serialllo. 369,021.

To all 'whom it may concern:

Be it known that I, FRANZ Hermann LEHNERT, a subject of theEmperor of. Austria, residing at Dresden,

provexnentsin Appsrzitus for Treating Foaming Liquids, of which the following is a. specification .This application is a division of'an application filed in the United States Patent ()Ffice, June 23, 1906, Serial Number 323,011.

The-present invention has reference to an apparatus for treating foaming liquids, and relates more especially to an apparatus for quickly condensing the foam, in hoiling certain liquids, ior instance in the manufacture of soap, and it essentially consists of special menus for cooling the ducts leading back the froth or foam into the boiling mass. v

In order to make the-invention more readily understood, I will now describe it with reference to the accompanying sh cot of drawing.

Figure 1 is a vertical sectional elevation of a boiler embodying my invcntionzand Fig. 2 is a: similarvvicw illustrating a slightly modified form thereof.

The boiler is indicated at 1, and is of any suitable shape usually cylindrical or-elliptic in horizontal section, and it is substantially divided into an upper chamber 2 and a lower chamber 3 by inesns of an inverted conical plate or diaphragm 4. The chamber 2 is-connccted with the chamberB by means of outside ducts or tubes, which cool the liduid contents passing through them. In Fig. 1 these tubes are straighter; at 4 while in Fig. 2, they are coiled, as at 5. These ducts or tubes of either form may he jacketed as at 6 in Fig. l or er. posed to the atmosphere as in Fig. 2. When. they are jacketed, the jacket 6 forms the inlet tube to introduce a, cooling medium into a hollow cooling cover or jacket 7, irorn which leads an exit 8 which may be suitablyconnected with a drain orothor discharge pipe (not shown). Within the chamber is a. steam or other heat- ,ing coil 8' which has circulation by means of an entrance or supply opening 9 and ex it 10.

Such apparatus may be used for instance in the manufacture 05 certain soaps, and the operation is then as followsz 'lhe mixture of the substances and wa ter is filled into the lower chnmocr'snd boiled. The carbonic acid generated duringthc boiling period, escapes, as shown by the foaming of the mixture. Thev froth and the water vapors rising during the boiling process mp condensed more or less on the cooled boilcr cover and drop back and pass through the coolod ducts loading back to the lower boiler chamber and are thereby still further condensed. The free carbonic acid escapes through the vent pipe 11.

. I am aware that apparatus have been constructed for condensing the foam and water vapor, hut have found that the condensation by means of such known app-w rotus can be accelerated to a. considomblo degree by providing special moans for cooling tho ducts which lead back the partly condensed products to the boiling moss.

I claim as new An appnrutus for treating foaming liquids provided with upper and lower communicating chmulwrs and u hollow condensing: cover superposed uhovo the entire uppor chum her. in comhlunlion with supply pipes [or suid i'olulu'usim: cow-r located outside tho holler. and cooling din-ls pnsslu: through suhl supply pipes and connecting the upper and lnWll' chumhors of [he holler.

in testimony whoroolf I :illix my slgnnturv, in llllfillli'l of two suhscrlhlng witnesses.

Witnesses I l'AuL Alums, (.LMu-i 31mm. 

